print ‘*’
==
How many stars will be printed for a given n and k.

# ([1], 'acm.sgu.ru':http://acm.sgu.ru/problem.php?contest=0&problem=222) How many ways can k rooks be placed on a nxn chessboard so that they don’t attack each other.

# ( [1], 'acm.sgu.ru':http://acm.sgu.ru/problem.php?contest=0&problem=222) How many ways can k rooks be placed on a nxn chessboard so that they don’t attack each other.

# (romanian county olympiad, 11th grade 2000 [1], 'acm.sgu.ru':http://acm.sgu.ru/problem.php?contest=0&problem=356) How many permutations of length n have no fixed points. A fixed point in a permutation p is p(i) = i
# (county level olympiad, 1994 [1]) How many correct bracket sequences of length 2n are there.
# (10th grade math course) How many paths are there on a grid from 1,1 to n, m if at each step you can either increase your x coordinate or increase your y coordinate.